/* Banner样式 */
.trade-banner {
    height: 400px;
    background: url('/image/traderhome.png') no-repeat center;
    background-size: cover;
    position: relative;
    margin-top: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.trade-banner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.4);
}

.banner-content {
    position: relative;
    z-index: 1;
    color: #fff;
}

.banner-content h1 {
    font-size: 48px;
    font-weight: 600;

}

.banner-content p {
    font-size: 40px;
    opacity: 0.9;
}

/* 响应式适配 */
@media (max-width: 768px) {
    .trade-banner {
        height: 300px;
        margin-top: 60px;
    }   

    .banner-content h1 {
        font-size: 32px;
        margin-bottom: 10px;
    }

    .banner-content p {
        font-size: 18px;
    }
}

@media (max-width: 576px) {
    .trade-banner {
        height: 200px;
    }

    .banner-content h1 {
        font-size: 24px;
    }

    .banner-content p {
        font-size: 16px;
    }
}

/* 贸易结构部分 */
.trade-structure {
    padding: 80px 200px;
    background: #F8F8F8;
}

.structure-content {
    margin-top: 60px;
    display: flex;
    gap: 40px;
}

.structure-left {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.structure-right {
    flex: 1;
}

.structure-card {
    background: #fff;
    border-radius: 10px;
    padding: 48px;
    text-align: center;
    height: 100%;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.05);
    position: relative;
    overflow: hidden;
    transition: transform 0.3s ease;
}

.structure-card:hover {
    transform: translateY(-10px);
}

.card-icon1,
.card-icon2,
.card-icon3 {
    transition: transform 0.3s ease;
}

.structure-card:hover .card-icon1,
.structure-card:hover .card-icon2,
.structure-card:hover .card-icon3 {
    transform: scale(1.1);
}

.card-icon1 {
    width: 55px;
    height: 40px;
    margin: 0 auto;
}

.card-icon2 {
    width: 40px;
    height: 39px;
    margin: 0 auto;
}

.card-icon3 {
    width: 37.73px;
    height: 36.06px;
    margin: 0 auto;
}

.card-icon img {
    width: 100%;
    height: 100%;
}

.structure-card h3 {
    font-size: 24px;
    color: #333;
    margin: 24px 0 16px;
    font-weight: 500;
}

.structure-card p {
    font-size: 16px;
    color: #666;
    line-height: 1.8;
}

.section-header {
    display: flex;

    justify-content: center;
}

/* 响应式适配补充 */
@media (max-width: 1440px) {
    .trade-structure {
        padding: 80px 100px;
    }

    .card-icon {
        width: 40px;
        height: 40px;
    }
}

@media (max-width: 1200px) {
    .structure-card {
        padding: 30px;
    }

    .structure-card h3 {
        font-size: 20px;
        margin: 20px 0 12px;
    }

    .structure-card p {
        font-size: 14px;
    }
}

@media (max-width: 992px) {
    .trade-structure {
        padding: 60px 40px;
    }

    .structure-content {
        flex-direction: column;
        gap: 20px;
    }

    .structure-left {
        gap: 20px;
    }
}

@media (max-width: 768px) {
    .trade-structure {
        padding: 40px 20px;
    }

    .structure-content {
        margin-top: 40px;
    }

    .structure-card {
        padding: 24px;
    }

    .card-icon {
        width: 32px;
        height: 32px;
    }
}

/* 主营产品部分 */
.main-products {
    padding: 80px 200px;
    background: #fff;
}

.products-content {
    margin-top: 60px;
}

.products-desc {
    text-align: center;
    font-size: 16px;
    color: #666;
    line-height: 1.8;
    margin-bottom: 60px;
}

.products-gallery {
    display: flex;
    gap: 40px;
    max-width: 1540px;
    margin: 0 auto;
    align-items: flex-end;
}

.gallery-main {
    flex: 2;
    width: 1000px;
    position: relative;
    overflow: hidden;
}

.gallery-main img {
    width: 100%;
    height: 525px;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.gallery-main:hover img {
    transform: scale(1.05);
}

.gallery-side {
    flex: 1;
    width: 500px;
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.gallery-side-item {
    position: relative;
    overflow: hidden;
    height: 242.5px;
}

.gallery-side-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.gallery-side-item:hover img {
    transform: scale(1.05);
}

/* 响应式适配补充 */
@media (max-width: 1440px) {
    .main-products {
        padding: 80px 100px;
    }

    .gallery-main img {
        height: 420px;
    }
    
    .gallery-side-item {
        height: 190px;
    }
}

@media (max-width: 1200px) {
    .gallery-main img {
        height: 350px;
    }
    
    .gallery-side-item {
        height: 155px;
    }
}

@media (max-width: 992px) {
    .main-products {
        padding: 60px 40px;
    }

    .gallery-main,
    .gallery-side {
        width: 100%;
    }

    .products-gallery {
        flex-direction: column;
        align-items: center;
    }

    .gallery-side {
        flex-direction: row;
        justify-content: center;
        height: auto;
        gap: 20px;
    }

    .gallery-main img,
    .gallery-side img {
        width: 100%;
        height: 280px;
        max-width: 600px;
    }
}

@media (max-width: 768px) {
    .main-products {
        padding: 40px 20px;
    }

    .products-content {
        margin-top: 40px;
    }

    .products-desc {
        font-size: 14px;
        margin-bottom: 40px;
    }

    .products-gallery {
        gap: 20px;
    }

    .gallery-side {
        gap: 20px;
    }

    .gallery-main img,
    .gallery-side img {
        height: 220px;
    }
}

@media (max-width: 576px) {
    .gallery-side {
        flex-direction: column;
    }

    .gallery-main img,
    .gallery-side img {
        height: 180px;
    }
}